Door lock

ABSTRACT

A door lock having a housing receiving a portion of an anchor plate extendable between a door and door jamb, a stop means removably attached to the plate for engaging a door, the stop means comprising a housing having a slot in one side receiving the plate, an anchor foot at the forward end of the plate receivable in a drilled hole in a door jamb, and a foot extension tube receiving the foot and extending into the door jamb beyond the foot.

United States Patent 1191 Qlabaugh Oct. 29, 1974 [54] DOOR LOCK 1,293,414 2/1919 Grimeck 292/290 Inventor: Earl A. Clabaugh, Humboldt Iowa 1,575,071 3/1926 Luman 292/192 50548 Primary Examiner-Richard E. Moore [22] Filed: Apr. 14, 1972 Attorney, Agent, or Firm-Hiram A. Sturges [21] Appl. N0.: 244,091

[57] ABSTRACT A door lock having a housing receiving a portion of an 1211- lif'c l'."1611331131331:""I'JJJJJJJJJJJJ: "11115 31513 9 plate extendabl heme a door and door 581 Field of Search 292/289, 290, 291, 292, lamb a P means remmbly attached 292/293 294 295 296 297 298 for engagmg a door, the stop means compnslng a housing having a slot in one side receiving the plate, hor foot at the forward end of the plate receiv- [56] References Cited an i able 1n a dnlled hole 1n a door amb, and a foot exten- UNITED STATES PATENTS sion tube receiving the foot and extending into the 614,052 11/1898 Jackson 292/295 1001' jamb beyond the foot 801,369 10/1905 Dickson et al.... 292/295 1,055,941 3/1913 Morrison 292/294 10 C fl 6 ng gures DOOR LOCK FIELD or THE INVENTION This invention is in the field of door locks of a type having a thin blade or plate extending between the door and door jamb and having foot means-at the forward end of the plate anchoring into the door jamb and fur ther provided with stop means at a rearward end of the plate and removably attached to the plate for engaging a door to prevent it from being opened.

DESCRIPTION OF THE PRIOR ART Door edge anchor plate locks of the prior art have had disadvantages causing them to be difficult for the homeowner or for amateur craftsmen to put in place.

It is because of these disadvantages, in my opinion,

thatsuch locks have not been'popular as compared with the common chain locks, even though the common chain locks are not very secure.

Infact, a swift kick onthe door can exert a tremendous impact force capable of pulling the chain lock mounting screws right out of most doors.

Despite these disadvantages, chain locks have been more popular than locks of the door edge plate type for many reasons.

Door edge plate locks have been divided in the prior art into two types with regard to the way in which they anchor to the door jamb. One of these types is a type in'which the plate itself is simply bent over at its for ward edge and pressed into the door jamb. Such a construction has the disadvantage that the projecting inner end of the plate is an unsightly hazard at times when the lock is not in use. It is in a position where it can be accidentally bumped by persons moving about near the door, as can cause the plate to become bent, knocked out of place so as to fall on the floor, or else, if the door is shut, injure the person who bumps against the projecting-end of the plate. I

Some prior art proposals have the forward anchoring foot of the plate hooked into the space between the door facing and the rest of the door jamb. This has the disadvantage that a person kicking at the door can simply knock the door facing or trim loose.

One prior art way is to first set a screw into the door jamb, the screw being of a special nature having a sizeable opening in it to receive a transverse foot at the forward end of the plate, however, a screw is circular in It is my conception that any openings in the door jamb to accommodate an anchor foot portion of a plate should be small, and somehow designed for a maximum of strength, although of a small size for good appearance.

Some prior art door edge plate locks are not designed for the removal of the plates at times when the lock is not in use. It seems important that a lock be removable for storage when it is not in use for a maximum of attractiveness of the door at such times. Removability also adds the advantage that the inwardly projecting end of the plate is not a dangerous obstruction to persons moving about the area.

The stop portions attachable to the inner ends of the plates of locks of this type in the prior art have all been of a type in which the door stop housing completely surrounds the plate, having the disadvantage that one must take time to slide the housing directly onto the plate, as takes an extra moment of time since the housing makes a close fit with the plate.

I have conceived that the housing should have a recess in it open on the forward side of the housing and also on the underside of the housing so that the housing can be quickly put in place by simply being dropped down on the plate.

SUMMARY OF THE INVENTION ing into the door jamb far enough to engage into a stud in the door frame behind the door jamb for strong anchoring, but leaving the foot itself of a much shorter length for ease of insertion and removal and for avoiding unnecessary bulk, aswould detract from the storage any transverse cross-section and will accommodate a foot of only very small vertical dimension, whereby the plate is inherently weak at its connection to the foot whereby even if a plate is of larger dimension in other areas, it is in danger of. being broken at its weakest point, namely, its connection to its foot portion.

Prior art proposals involving plate-foot portions which are made of separate material from the plate itself provide for large foot portions which can be of adequate strength but which have required very large recesses in the door jamb to accommodate them. Such large recesses are unsightly. The single large recess in a door commonly found there for use with a door-knob latch is not so unsightly because it is at one single locaand packaging size of the product.

Since most homeowners have a drill available, and drilling is easy for an amateur, the foot-receiving sleeve is made cylindrical for snugly fitting adrilled hole.

The door stop having a housing portion having a plate receiving recess which opens .not only upon the forward side of the housing,.but also onto the underside of the housing to make it possible to simply pass the housing down onto the plate for quick and easy installation, as might be very important in an emergencylocking of a door when danger threatens.

The housing being of a one-piece construction for strength and for economy of manufacture, its recess feature adapting it to economical manufacture by a simple sawing through of the housing, thus eliminating the expensive manufacture of housing openings that has been a characteristic of the housings of locks of this type in the prior art.

Another objective is to provide a latch pin snugly fitting a bore in the housing, the latch pin having an enlarged portion for engaging the anchor plate to provide strength so as not to be in danger of being broken if the door is stuck with a great ramming force, a portion of the latch pin being of lesser diameter for accommodating a coiled spring therearound, the narrower portion of the latch pin extending through a narrower portion of the latch pin opening in the housing, which latter feature provides a shoulder for engaging the spring with an economy of manufacture.

A further object of the invention is to provide the foot portion attached to the plate by a special manufacturing process in which the plate is first provided with a foot opening therethrough which has bevelled sides so as to be a lesser diameter on that side of the plate on which the foot projects, the foot being peaned out to snugly fit the foot opening in the plate, making a tight attachment by filling the bevelled foot opening. This construction has the advantage that the foot is flush with the inner side of the plate which faces the door so as to give a minimum of interference with the closing of the door combined with a maximum of strength of attachment, all accomplished without excess material on the side of the plate which faces the door jamb so that that portion of the foot which extends into the door jamb is exactly cylindrical on its exterior for a good'fit with a foot-receiving sleeve and for permitting the plate to fit tightly up against the door .Iamb.

Still another object is to provide the one-piece housing with a resilient pad means for engaging the door so as to prevent the marking of the door, the pad means and the housing forming an economical combination because of the simplicity of adhesively attaching the resilient padding.

DESCRIPTION OF THE DRAWING FIG. 1 is a horizontal cross-section taken through a door and door jamb assembly showing the door lock of this invention mounted thereon, the door lock being shown in top plan view, with the exception that a portion of the door jamb and an upper portion of a part of the door lock are broken away and shown in section for better illustration, an unlatching position of a latch handle being'shown in dotted lines.

FIG. 2 is a diagrammatic view showing a crosssection of a foot member of the invention extending through a plate thereof at a time during manufacture when the foot and plate are not yet assembled.

FIG. 3 shows the foot in assembled position on the plate, the view being otherwise the same as FIG. 2, but showinga later stage in the manufacture, a spinning pressure tool being partially shown in a position as it is being removed from the foot, having finished a bevelling operation.

FIG. 4 is a sectional view taken along the line 4-4 of FIG. I and showing the stop portion of the lock in vertical section, a portion of a latch handle being removed.

FiG. 5 is a view of the plate as it appears when seen from the door jamb side.

FIG. 6 is a rear view of the parts shown in FIG. 1 as they would be seen from the bottom in FIG. 1, or in other words, as the door lock would be seen from the inner side of the door when in locked position.

DESCRIPTION OF THE PREFERRED EMBODIMENT A door and door lock assembly is generally indicated at 10 in FIG. 1 and comprises a door lock 12 shown in a position for locking a door 20, which latter is disposed in a conventional doorway opening 24 surrounded by a door jamb generally indicated at 26 and having vertical facing members 30 which face the opening 24, only one of the facing members 30 being shown.

The door jamb 26 has a molding 34 extending vertically and providing an inner side thereof at 46 which faces rearwardly so as to be engaged by the door 20 at times when the door is closed. It is to be understood that the door 20 swings open by moving in the direction of an arrow 40. The molding 34 is suitably attached to the vertical facing member 30 and the door jamb also has side facing members 42 and 44 on the outer and inner sides of the wall generally indicated at 50 in which the doorway opening 24 is disposed.

Between the inner and outer facing members 42 and 44 are two studs 60 and 62, the stud 60 being disposed against the vertical facing member 30.

An inner trim member extends in a vertical position lapping both the inner facing member 44 and the vertical side member 30 of the door jamb.

The door lock generally indicated at 12 has an anchor plate of a thickness adapting the plate to be received between the door 20 and the inside surface of the door jamb member 30. Since doors expand in moist weather conditions, it is important that the anchor plate 80 be relatively thin in proportion to its vertical width, which latter is best seen in FIG. 5, approximately at full scale.

A stop means generally indicated at is removably attached to the plate 80 and is adapted to engage the door 20 to hold it shut.

The stop means 90 has a housing 94 provided with an anchor plate receiving opening 98 therein, and preferably extending therethrough, the opening 98 entering from a forward side 99 of the housing, the forward side 99 being a side adapted to face the door 20, the anchor plate receiving opening 98 extending completely through the housing 94 and, therefore, opening upon the rearward side 102 of the housing 94 and receiving a portion of the plate 80.

The stop means or stop assembly 90 has a movable latch which slides horizontally in a latch-receiving opening means 132 which extends into the housing from one of its two upright sides 136 and extends horizontally through the housing 94. The latch-opening means 132 has an outer portion 138 of greater diameter which is formed as a counter bore, and also has a narrow portion 140 which is farther from the anchor plate receiving opening 98 than the outer or larger latch opening means portion 138.

The latch 130 has a larger diametered portion 144 snugly and slidably fitting the larger diametered portion 138 of the latch opening means 132. The latch 130 has also a control portion 152 of a smaller diameter than the latching portion 144 and snugly and slidably received in the smaller diametered portion 140 of the latch opening 132 and extending therethrough and having threads 154 thereon receiving a knob 160. As the knob moves from a full-line position shown in FIG. 1 to the dotted line position shown in FIG. 1, the larger diametered launching portion 144 of the latch 130 will move to the dotted line position shown at 130 in FIG. 4 in which position it is retracted back from the anchor plate receiving opening 98 for releasing'the anchor plate 80.

A compression spring is shown in full lines at in FIG. 4 in a position engaging a shoulder 174 on the knob 160 side of the larger latch portion I44, the other end of the spring 170 engaging ashoulder formed by the innermost wall of the outer or larger diametered portion 138 of the latch opening 132. The spring 170 urges the latch 130 at all times into a position extending across the anchor plate receiving opening 98 and into that portion of the latch opening 132 which is in that part of the housing which isopposite the knob 160 from the anchor plate receiving opening98.

When the knob 160 is drawn back to the dotted line position of FIG. 1, thespring 170 will be compressed into the constricted shape shown in dotted lines in FIG.

The latch 130 has a screwdriver reception slot 250 in that one of its ends which is closest to the anchor plate receiving opening 98 so that during assembly the screwdriver can holdthe latch 130 from rotation while its knob 160 is installed on it.

- It is important that the anchor plate receiving opening 98 open not only toward the forward side 99 of the housing 94, but also open toward the underside 256 of the housing 94, as seen in FIG. 4 and also in FIG. 6, whereby the anchor plate receiving opening 98 can also be referred to as a plate receiving recess or opening 98, which latter can receive the anchor plate 80 as the housing 94 is quickly passed down onto the anchor plate or shoved forwardly onto the anchor plate or applied to the anchor plate being moved both downwardly and forwardly. This makes for quick attachment of the housing to the anchor plate with almost no skill nor emotional composure necessary, as could be very important in an emergency. For example, when a woman is quickly locking the door against someone who has been following her home, all speed would be important. The sides of the anchor plate 80 are both planar. For economy of manufacture, the anchor plate receiving recess or opening 98 preferably is made in the form of a slot so that it opens also toward the rearward side 102 of the housing whereby the housing 94 can be made of one piece of material and the latch receiving opening 98 formed by passing the housing across a saw blade for quickly making the slot or latch receiving opening 98.

Details of construction which make for economy of I manufacture are extremely important in a door lock assembly because many families will want to use one on the front door, another on the back, and others on the windows, since the lock can be used on windows of the type which swing in like a door, and also could be used with the housing 94 disposed above the crevice between the button of an upper sash and the top of a lower sash of a sliding sash window, with the anchor plate 80 extending downwardly into the crevice between the upper and lower windows.

As best seen in FIG. 5, the anchor plate 80 is preferably formed of steel for high strength, as is desirable because of its necessary thinness and is further provided with a plurality of latch receiving openings 260 therethrough which are spaced longitudinally and horizontally along the anchor plate 80, one rearwardly of the other. The latch receiving openings 260 can be considered to provide rearward wall surfaces 264 which can also be considered to be detent surfaces 264 engage-- able by the latch 130 for preventing movement of the plate 80 forwardly out of the housing 94; or, in another sense, for preventing the housing 94 from being moved rearwardly off of the anchor plate 80.

The invention further comprises forward anchoring means generally indicated at 300 in FIG. I for anchoring the forward end of the anchor plate to the door jamb 26.

The forward anchoring means 300 has a rigid anchor foot 310 extending transversely of the plate 80 and horizontally to that side of the plate 80 which is opposite the door 20, as seen in top plan view in FIG. I.

The foot 310 is attached to the plate 80 by a method shown in FIGS. 2 and'3.

Referring to FIG. 2, the first step of such attachment is to provide the plate 80 with a foot receiving opening 316. The opening 316 is bevelled on its edges and circular, the bevel being such that the wall of the opening 316 is larger on the door 20 side of the plate 80 than on the opposite side, the bevel being perhaps at 45 with respect to the axis 320 of the opening.

The foot 310, during the manufacturing stage shown in FIG. 2, has a longer and larger diametered portion 322 and a shorter and smaller diametered portion 324, both of which portions are cylindrical, whereby a flat shoulder 328 is provided on that side of the larger diametered portion 322 which engages the anchor plate 80. The smaller diametered portion 324 snugly fits the smallest part of the opening 316.

The next step of manufacture is shown in FIG. 3 in which a tool 330 of any suitable shape is applied against the terminal end of the smaller diametered portion 324 causing it to be pressed outwardly as the tool 330 spins about the axis 320, whereby the end result is that the portion 324 is bevelled outwardly to'tightly fill and fit the bevelled opening 316 whereby no part of the portion 324 projects beyond the door 20 side of the anchor plate 80, and yet a very strong attachment is provided with only a small centering recess 336 left on the axis 320 and on the terminal end of the portion 324.

In the final form shown in FIG. 3, the most constricted part of the foot 320, as a matter of diameter, is to be found at 338 opposite the narrowest part of the opening 316.

Referring now to FIG. 1, it will be seen that to mount the door lock 12, the operator first drills ahole 400 in the door jamb 26 so that it-extends completely through the facing member 30 and a substantial distance into the adjacent studding 60. Next, the operator places a tubular cylindrical sleeve 410 in the sleeve-receiving recess 400 with which it will make a sung fit for a firm grip on the wood of the door jamb and on the studding 60.

The tubular sleeve 410 is cylindrical both on its outer side and on its inner side, the inner side 420 of the sleeve making a snug but slidable fit with the cylindrical outer surface of the foot 310. The outer end of the sleeve 300 is disposed flush with the outer surface of the facing member 30.

In operation, to look a door, the operator first places the foot 310 in the sleeve 410 with the plate 80 against the door jamb 26. Next, the door 20 is closed. Next, the housing 94 is placed on the anchoring plate 80 at a time when the latch is retracted by the knob 160.

The latch 130 is then allowed to slide. into that one of the latch openings 260 which is closest to the door 20. The spring will hold the latch 1'30 firmly in place keeping the door locked until it is opened by the withdrawal of the latch 130 from the anchor plate 80.

The parts shown in FIG. 1 are substantially at full scale, and so it will be seen that the distance from the anchor plate receiving opening 98 to the adjacent end 99 of the housing 94 is preferably approximately oneeighth of an inch with the opening 98 approximately one-sixteenth of an inch or slightly larger to freely receive the anchor plate 80 which is itself one-sixteenth of an inch thick. This is important because the trim member 70 on most doors is only about three sixteenths of an inch from the surface of the facing member 30 which faces the door 20, so there is not much room available.

The larger diametered portion 144 of the latch is preferably one-fourth of an inch in diameter in crosssection and the latch is made of steel for rugged construction. With the foot 310 also made of steel as well as the anchor plate 80, the lock will withstand tremendous forces.

Referring to FIG. 1, a padding member 500 can be attached to the forward side 99 of the housing 94 for preventing the door from being marred by the housing 94. This padding can be circular in shape, as seen in FIG. 6 in dotted lines and partially in full line, the latter at the point where the housing is broken away to illustrate the position of the padding 500.

Since the foot 310 is made of steel of one-fourth inch diameter and its most constricted portion indicated at 338 in F IG. 3, it is still of a substantial diameter greater than the thickness of the plate 80, it will be seen that a sheering of the foot 310 transversely of itself due to a tremendous force on the door 20 would not occur nearly so easily as would be the case if a mere bent over portion of the plate 80 was itself used as a foot in which the thickness would be approximately half or less, as would be seen in top plan view.

I claim:

1. A door lock comprising an anchor plate of a thickness adapting said plate to be received between a door and an inside surface of a door jamb, a stop means removably attached to said plate for engaging a door, said stop means comprising a housing having an anchor plate receiving opening means therein which latter enters from a forward side thereof, said forward side being adapted to face a door, said opening means receiving a portion of said plate, a movable latch, means movably mounting said latch on said housing for movement into and out of positions extending into said opening means, said housing having a latch access opening means therein receiving a portion of said anchor plate and said latch access opening means communicating with said recess to permit said latch to engage said anchor plate, said anchor plate having detent surface means thereon engageable by said latch means for preventing movement of said plate forwardly out of said housing, and forward anchoring means for anchoring the forward end of said anchor plate to said door jamb, and further comprising said forward anchoring means comprising a rigid anchor foot extending transversely to one side of said plate as seen in top plan view, means attaching said foot to said plate sufficiently for preventing said plate from moving rearwardly past said foot, said foot being formed of a different piece of material than said plate and having a forward-to-rearward thickness in top plan view which is substantially greater than the thickness of said plate as seen in top plan view, and in which said anchor plate is substantially planar on one side and in which said anchor plate and said foot are attached together by means of providing a foot-receiving opening extending from right to left through said anchor plate, said foot-receiving opening having a bevelled wall whereby said opening is of lesser size on said one side of said plate and of a greater size on the other side of said plate, said anchor foot being provided with a portion received in said anchor foot-receiving opening which substantially snugly fits the bevelled wall of said anchor foot-receiving opening.

2. A door lock comprising an anchor plate of a thickness adapting said plate to be received between a door and an inside surface of a door jamb, a stop means removably attached to said plate for engaging a door, said stop means comprising a housing having an anchor plate receiving opening means therein which latter enters from a forward side thereof, said forward side being adapted to face a door, said opening means receiving a portion of said plate, a movable latch, means movably mounting said latch on said housing for movement into and out of positions extending into said plate receiving opening means, said anchor plate having detent surface means thereon engageable by said latch for preventing movement of said plate forwardly out of said housing, said housing having a latch access opening means therein intersecting said plate receiving opening means, said latch access opening means receiving a portion of said anchor plate-whereby said latch can engage said detent surface means of said anchor plate, and a forward anchor foot attached to the forward end of said plate for anchoring the forward end of said anchor plate to said door jamb, a foot-receiving sleeve of a length substantially greater than the length of said foot disposed on said foot and receiving said foot therein whereby said sleeve can extend into a studding disposed behind a facing member of a door jamb for being very strongly anchored, said sleeve being larger than said foot in outside cross-section and being formed of material which is substantially stronger than wood whereby a force pulling said foot transversely of itself will be strongly resisted by said sleeve.

3. A door lock of claim 2 in which said housing has first and second portions disposed on opposite sides of said anchor plate receiving opening means, said latch access opening means extending through at least parts of both of said first and second housing portions, and said latch being received in both of said first and second housing portions at times when said latch is in locking position for strongly holding said latch.

4. A door lock comprising an anchor plate of a thickness adapting said plate to be received between a door and an inside surface of a door jamb, a stop means removably attached to said plate for engaging a door, said stop means comprising a housing having an anchor plate receiving opening means therein which latter enters from a forward side thereof, said forward side being adapted to face a door, said opening means receiving a portion of said plate, a movable latch, means movably said latch on said housing for movement into and out of positions extending into said opening means, said housing having a latch access opening means therein receiving a portion of said anchor plate and said latch access opening means communicating with said recess to permit said latch to engage said anchor plate, said anchor plate having detent surface means thereon engageable by said latch means for preventing movement of said plate forwardly out of said housing, and forward anchoring means for anchoring the forward end of said anchor plate to said door jamb, and in which said latch has an end disposed closest to said anchor plate receiving opening means and said latter end having a tool-receiving recess therein for facilitating rotation of said latch during its assembly onto said housing.

certain housing wall portions being formed of a mate-,

rial which is form and rigid and substantially stronger than rubber.

7. The door lock of claim 3 in which said sleeve is of cylindrical shape on its outer and inner sides.

8. The combination of claim 4 in which said latch has its end opposite said tool-receiving recess provided with a knob removably attached thereto by means of threads whereby said tool-receiving recess facilitates rotation of the latch specifically into the knob during assembly.

9. The door lock of claim 1 in which said foot is cylindrical on its exterior making a hole to receive said foot easy to form with a drill.

10. The door lock of claim 2 in which said foot is cylindrical on its exterior making a hole to receive said foot easy to form with a drill. 

1. A door lock comprising an anchor plate of a thickness adapting said plate to be received between a door and an inside surface of a door jamb, a stop means removably attached to said plate for engaging a door, said stop means comprising a housing having an anchor plate receiving opening means therein which latter enters from a forward side thereof, said forward side being adapted to face a door, said opening means receiving a portion of said plate, a movable latch, means movably mounting said latch on said housing for movement into and out of positions extending into said opening means, said housing having a latch access opening means therein receiving a portion of said anchor plate and said latch access opening means communicating with said recess to permit said latch to engage said anchor plate, said anchor plate having detent surface means thereon engageable by said latch means for preventing movement of said plate forwardly out of said housing, and forward anchoring means for anchoring the forward end of said anchor plate to said door jamb, and further comprising said forward anchoring means comprising a rigid anchor foot extending transversely to one side of said plate as seen in top plan view, means attaching said foot to said plate sufficiently for preventing said plate from moving rearwardly past said foot, said foot being formed of a different piece of material than said plate and having a forward-torearward thickness in top plan view which is substantially greater than the thickness of said plate as seen in top plan view, and in which said anchor plate is substantially planar on one side and in which said anchor plate and said foot are attached together by means of providing a foot-receiving opening extending from right to left through said anchor plate, said foot-receiving opening having a bevelled wall whereby said opening is of lesser size on said one side of said plate and of a greater size on the other side of said plate, said anchor foot being provided with a portion received in said anchor footreceiving opening which substantially snugly fits the bevelled wall of said anchor foot-receiving opening.
 2. A door lock comprising an anchor plate of a thickness adapting said plate to be received between a door and an inside surface of a door jamb, a stop means removably attached to said plate for engaging a door, said stop means comprising a housing having an anchor plate receiving opening means therein which latter enters from a forward side thereof, said forward side being adapted to face a door, said opening means receiving a portion of said plate, a movable latch, means movably mounting said latch on said housing for movement into and out of positions extending into said plate receiving opening means, said anchor plate having detent surface means thereon engageable by said latch for preventing movement of said plate forwardly out of said housing, said housing having a latch access opening means therein intersecting said plate receiving opening means, said latch access opening means receiving a portion of said anchor plate whereby said latch can engage said detent surface means of said anchor plate, and a forward anchor foot attached to the forward end of said plate for anchoring the forward end of said anchor plate to said door jamb, a foot-receiving sleeve of a length substantially greater than the length of said foot disposed on said foot and receiving said foot therein whereby said sleeve can extend into a studding disposed behind a facing member of a door jamb for being very strongly anchored, said sleeve being larger than said foot in outside cross-section and being formed of material which is substantially stronger than wood whereby a force pulling said foot transversely of itself will be strongly resisted by said sleeve.
 3. A door lock of claim 2 in which said housing has first and second portions disposed on opposite sides of said anchor plate receiving opening means, said latch access opening means extending through at least parts of both of said first and second housing portions, and said latch being received in both of said first and second housing portions at times when said latch is in locking position for strongly holding said latch.
 4. A door lock comprising an anchor plate of a thickness adapting said plate to be received between a door and an inside surface of a door jamb, a stop means removably attached to said plate for engaging a door, said stop means comprising a housing having an anchor plate receiving opening means therein which latter enters from a forward side thereof, said forward side being adapted to face a door, said opening means receiving a portion of said plate, a movable latch, means movably said latch on said housing for movement into and out of positions extending into said opening means, said housing having a latch access opening means therein receiving a portion of said anchor plate and said latch access opening means communicating with said recess to permit said latch to engage said anchor plate, said anchor plate having detent surface means thereon engageable by said latch means for preventing movement of said plate forwardly out of said housing, and forward anchoring means for anchoring the forward end of said anchor plate to said door jamb, and in which said latch has an end disposed closest to said anchor plate receiving opening means and said latter end having a tool-receiving recess therein for facilitating rotation of said latch during its assembly onto said housing.
 5. The door lock of claim 4 in Which said means movably mounting said latch on said housing comprises a latch-receiving opening means which latter has certain housing wall portions disposed along said latch, said certain housing wall portions being formed of a material which is firm and rigid and substantially stronger than rubber.
 6. The door lock of claim 1 in which said means movably mounting said latch on said housing comprises a latch-receiving opening means which latter has certain housing wall portions disposed along said latch, said certain housing wall portions being formed of a material which is form and rigid and substantially stronger than rubber.
 7. The door lock of claim 3 in which said sleeve is of cylindrical shape on its outer and inner sides.
 8. The combination of claim 4 in which said latch has its end opposite said tool-receiving recess provided with a knob removably attached thereto by means of threads whereby said tool-receiving recess facilitates rotation of the latch specifically into the knob during assembly.
 9. The door lock of claim 1 in which said foot is cylindrical on its exterior making a hole to receive said foot easy to form with a drill.
 10. The door lock of claim 2 in which said foot is cylindrical on its exterior making a hole to receive said foot easy to form with a drill. 